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Re: 1751 w Acer Lcd monitor no pic sound ok..
Since you know this much, I would like you to pull the plug from the inverter board, turn the set on and measure for either 12 or 24 volts DC on the plug (that depends on what lcd display was used) If you have the correct voltage and does not fall off then the inverter board is bad, I have tried to locate various IC's on these boards with no luck so had to replace the board.
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smcclain2, Might be a possible failure of the electronic "ballast" circuit that provides 600 to 1000volts AC to light-up the "cold-cathod-fluorescent-lamps" (CCFL's) hung on rear of the glass lcd panel and provide white light so you can see what is on the panel!! The "ballast" is called an "INVERTER". DCv to AC The new energy efficient curlie-Q screw-in light bulbs use a CONVERTER type ballast. AC to AC. You or ccfl back-lit monitor technician will need to troubleshoot and repair the ballast circuit board. Same "lighting technology" is used in 98 percent of all lcd computer monitors. 12fixlouie
Ur LCD inverter board is dead.Replaced this LCD inverter board u will get ur picture back.This a simple repair take ur tv aparts,take out the LCD inverter board,it a long shape of a board.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish LCD inverter board for the replament.U will get ur picture back.Ok,good luck,labors about an hour work.
Yes,the LCD inverter board is dead.Replaced the LCD inverter board will get ur picture back.Tries Shopjimmy.com,Ebay.com to buy a refurbish LCD inverter board for the replacement.It a long board in shape.
Ur LCD inverter backlight board is dead.Replaced this LCD inverter backlight board will get ur picture back.Tries Shopjimmy.com,Ebay.com to buy a refurbish LCD inverter backlight board for the replacement.It a long board in shape.
in the lower side of the screen internally there is aboard.this board is called the inverter board.which controls the lights in the lcd.if that inverter board is getting short this problem happens.the cost of new inverter board is near to $35.you can get this board from
or from at
also if you are not familiar with replacing and repairing you can get it replaced by local electronics repair person dealing in lcd repairing.
Try replacing C51, a 10 microfarad 16v. surface mount electrolytic. It's near IC23 on the upper center of the board.
This part had high ESR on a couple of sets I serviced which
kept the power supply from starting.
These units have the power supply and ballasts on one board, It's common for the capacitors on them to fail(bulge, leak, pop), those are the visual ques that they are bad, i've had good luck replacing the capacitors on this model to save them from the trash.
inspect C20, C21, C34, C37, and C36, they are all the largest caps on this board that the power cord plugs into.